private void OdaOzellikForm_Load(object sender, EventArgs e) { OdalarORM odaORM = new OdalarORM(); cmb_Odalar.DataSource = odaORM.Select(); cmb_Odalar.DisplayMember = "Adi"; cmb_Odalar.ValueMember = "Id"; OzellikORM ozORM = new OzellikORM(); list_Ozellikler.DataSource = ozORM.Select(); list_Ozellikler.DisplayMember = "Adi"; list_Ozellikler.ValueMember = "Id"; }